Depart123
Well, that's different. I dry tumble my cases for a few hours to clean off any dirt, and I have a carbide sizing button. The dust from the walnut media inside the case seems to have the same effect as dry graphite.I should have made myself more clear. I want to make sure that every case gets lube inside the case snack.
For my big cases like 300 Win and 338 Lapua, I use a small amount of mink oil on a nylon brush to get inside the necks.